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ASCL Code Record

[ascl:1804.010] SMERFS: Stochastic Markov Evaluation of Random Fields on the Sphere

SMERFS (Stochastic Markov Evaluation of Random Fields on the Sphere) creates large realizations of random fields on the sphere. It uses a fast algorithm based on Markov properties and fast Fourier Transforms in 1d that generates samples on an n X n grid in O(n2 log n) and efficiently derives the necessary conditional covariance matrices.

Code site:
https://github.com/pec27/smerfs
Described in:
https://ui.adsabs.harvard.edu/abs/2018MCMA...24....1C
Bibcode:
2018ascl.soft04010C

Views: 1315

ascl:1804.010
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